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1. 发明授权

US08709961B2 Method for superconducting connection between MgB2 superconducting wires via a MgB2 matrix made from a boron powder compressed element infiltrated with Mg 有权
标题翻译： MgB2超导线之间通过MgB2基体超导连接的方法
公开(公告)号：US08709961B2
公开(公告)日：2014-04-29
申请号：US12656870
申请日：2010-02-18
申请人： Felicitas Tenbrink , André Aubele , Volker Gluecklich , Bernd Sailer , Klaus Schlenga
发明人： Felicitas Tenbrink , André Aubele , Volker Gluecklich , Bernd Sailer , Klaus Schlenga
IPC分类号： C04B35/04
CPC分类号： H01L39/02 , C04B35/58057 , C04B35/65 , C04B37/005 , C04B2235/401 , C04B2235/421 , C04B2235/524 , C04B2235/5436 , C04B2235/604 , C04B2235/608 , C04B2235/616 , C04B2237/08 , C04B2237/36 , H01R4/08 , H01R4/68
摘要： A method for superconductingly connecting two or more wires (1, 2), each comprising at least one filament (3a-3d) that contains MgB2 or a mixture of Mg and B, wherein a superconducting connection is realized through exposed end regions (4a) of the filaments (3a-3d) via an MgB2 matrix, is characterized in that a bulk boron powder (4) is provided into which the exposed end regions (4a) of the filaments (3a-3d) of the wires (1, 2) project, the boron of the bulk boron powder (4) being present in amorphous modification. The bulk powder (4) is then compacted together with the projecting exposed end regions (4a) of the filaments (3a, 3b) to form a compressed element (8) and the compressed element (8) is infiltrated with molten magnesium (10) from the surface (13) of the compressed element (8). The method improves the quality, in particular, the current-carrying capacity and the critical magnetic field strength of a superconducting connection of MgB2 superconducting wires.
摘要翻译：一种用于超导地连接两根或更多根线（1,2）的方法，每个线包括至少一个包含MgB2或Mg和B的混合物的细丝（3a-3d），其中通过暴露的端部区域（4a）实现超导连接，经由MgB 2基体的长丝（3a-3d）的特征在于，提供块状硼粉末（4），其中线材（1,2）的细丝（3a-3d）的暴露端部区域（4a））项目中，体积硼粉（4）的硼存在于非晶态改性中。然后将散装粉末（4）与长丝（3a，3b）的突出的暴露端部区域（4a）压实在一起形成压缩元件（8），压缩元件（8）用熔融镁（10）渗透，从压缩元件（8）的表面（13）开始。该方法提高了MgB2超导线材超导连接的质量，特别是载流能力和临界磁场强度。

2. 发明申请

US20090156410A1 Fabrication Method of a MgB2 Superconducting Tape and Wire 失效
标题翻译： MgB2超导带和线的制造方法
公开(公告)号：US20090156410A1
公开(公告)日：2009-06-18
申请号：US12084035
申请日：2006-10-24
申请人： Takayuki Nakane , Hitoshi Kitaguchi , Hiroki Fujii , Hiroaki Kumakura
发明人： Takayuki Nakane , Hitoshi Kitaguchi , Hiroki Fujii , Hiroaki Kumakura
IPC分类号： H01B12/10 , H01L39/24 , H01B12/02
CPC分类号： C01B35/04 , C04B35/58057 , C04B2235/3826 , C04B2235/401 , C04B2235/421 , C04B2235/422 , H01L39/2487 , Y10S505/704 , Y10T29/49014
摘要： In a fabrication method of a MgB2 superconducting tape and wire by filling a tube with a MgB2 superconducting powder and forming it into a tape or wire, a fabrication method of a MgB2 superconducting tape (and wire) which is characterized by using a MgB2 superconducting powder having a high critical current density (Jc) owing to its lowered crystallinity and having potential for excellent grain connectivity as the MgB2 superconducting powder. Provided are a fabrication method of a MgB2 superconducting tape and wire which can fabricate a MgB2 superconducting tape and wire having a level of Jc sufficiently high for practical applications and homogeneous quality throughout its length by an ex-situ process employing a material of the composition suitable for its working environment as the sheath material, and a MgB2 superconducting tape and wire thereby fabricated.
摘要翻译：在通过用MgB 2超导粉末填充管并将其形成带或线的MgB 2超导带和线的制造方法中，MgB 2超导带（和线）的制造方法，其特征在于使用MgB 2超导粉末具有较高的临界电流密度（Jc），由于其结晶度降低并且具有优异的晶粒连接作为MgB 2超导粉末的潜力。提供了一种MgB 2超导带和线的制造方法，其可以通过使用适合的组合物的材料的非原位工艺来制造具有足够高的用于实际应用和均匀质量的Jc的MgB2超导带和线的MgB2超导带和线因为其作为护套材料的工作环境，以及由此制造的MgB 2超导带和线。

3. 发明申请

US20080020137A1 Doped magnesium diboride powders and methods for making the same 有权
标题翻译：掺杂的二硼化镁粉末及其制造方法
公开(公告)号：US20080020137A1
公开(公告)日：2008-01-24
申请号：US11491795
申请日：2006-07-24
申请人： Venkat Subramaniam Venkataramani , Sylvia Marie DeCarr , Sergio Paulo Martins Loureiro
发明人： Venkat Subramaniam Venkataramani , Sylvia Marie DeCarr , Sergio Paulo Martins Loureiro
IPC分类号： B05D7/00 , B05D3/02
CPC分类号： C01B35/04 , B82Y30/00 , C04B35/58057 , C04B35/62834 , C04B35/62884 , C04B35/62892 , C04B35/62897 , C04B35/806 , C04B2235/3225 , C04B2235/3808 , C04B2235/3826 , C04B2235/3895 , C04B2235/40 , C04B2235/402 , C04B2235/404 , C04B2235/421 , C04B2235/422 , C04B2235/428 , C04B2235/483 , C04B2235/5248 , C04B2235/5445 , C04B2235/5454 , H01L39/125 , H01L39/2487
摘要： A method for making a doped magnesium diboride powder is provided. The method includes coating a polymeric precursor on at least one of a plurality of particles of a first phase, where the first phase includes a magnesium diboride powder, where the polymeric precursor includes chemical elements yielding a second phase. The second phase includes one or more of a boride, a nitride, a carbide, an oxide, an oxy-boride, an oxy-nitride, an oxy-carbide, or combinations thereof. The method further includes forming a second phase coating onto at least one of the plurality of particles of the magnesium diboride powder.
摘要翻译：提供了制备掺杂的二硼化镁粉末的方法。该方法包括将聚合物前体涂覆在第一相的多个颗粒中的至少一个上，其中第一相包括二硼化镁粉末，其中聚合物前体包括产生第二相的化学元素。第二相包括硼化物，氮化物，碳化物，氧化物，氧化硼，氮氧化物，氧化碳或其组合中的一种或多种。该方法还包括在多个二硼化镁粉末颗粒中的至少一个上形成第二相涂层。

4. 发明授权

US06953770B2 MgB2—based superconductor with high critical current density, and method for manufacturing the same 失效
标题翻译：具有高临界电流密度的MgB2基超导体及其制造方法
公开(公告)号：US06953770B2
公开(公告)日：2005-10-11
申请号：US10333770
申请日：2002-05-10
申请人： Yong Zhao , Yong Feng , Yuan Wu , Takato Machi , Yasunori Fudamoto , Naoki Koshizuka , Masato Murakami
发明人： Yong Zhao , Yong Feng , Yuan Wu , Takato Machi , Yasunori Fudamoto , Naoki Koshizuka , Masato Murakami
IPC分类号： H01L39/12 , H01L39/00 , H01B1/02 , H01B12/00
CPC分类号： H01L39/125 , C04B35/58057 , C04B35/6303 , C04B2235/3813 , C04B2235/401 , C04B2235/404 , C04B2235/421 , C04B2235/5436 , C04B2235/80 , C04B2235/94 , H01L39/2487 , Y10S420/901 , Y10S428/93
摘要： The present invention relates to an MgB2-based superconductor that is easy to manufacture and well suited to mass production, and that exhibits excellent superconducting characteristics (such as a high critical current density) while still retaining the high critical temperature characteristics of MgB2. A powder mixture of magnesium, boron, and titanium is pressed into a pellet, and this product is sintered under an atmospheric pressure and other conditions (preferably at 600° C. or higher) to manufacture an MgB2-based superconductor in which titanium and/or a titanium compound are dispersed in polycrystalline MgB2. The composition of the MgB2-based superconductor is preferably adjusted to have an atomic ratio of Mg:B:Ti=x:2:y, 0.7
摘要翻译：本发明涉及容易制造且非常适合批量生产的基于MgB 2 O 2的超导体，并且显示出优异的超导特性（例如高临界电流密度），同时仍保持高的 MgB 2的临界温度特性。将镁，硼和钛的粉末混合物压制成颗粒，并将该产物在大气压和其他条件（优选在600℃或更高）下烧结以制备MgB 2 的超导体，其中钛和/或钛化合物分散在多晶MgB 2 2中。优选将MgB 2 O 2基超导体的组成调整为具有Mg:B:Ti = x:2:y，0.7

5. 发明申请

US20040250410A1 Method including a heat treatment of manufacturing superconducting wires based on mgb2 失效
标题翻译：包括基于mgb2制造超导线的热处理方法
公开(公告)号：US20040250410A1
公开(公告)日：2004-12-16
申请号：US10492791
申请日：2004-04-16
发明人： Giovanni Grasso , Andrea Malagoli
IPC分类号： B21B001/46 , B22D011/128
CPC分类号： H01L39/2487 , C04B35/58057 , C04B2235/604 , C04B2235/656 , C04B2235/94 , Y10T29/49014 , Y10T29/49117 , Y10T29/49194 , Y10T29/4998
摘要： A method of manufacturing superconducting wires based on MgB2 is described and includes the steps of: production of a cylindrical wire comprising an MgB2 core surrounded by a metal covering, in which the core has a lattice structure formed by grains of the compound MgB2; rolling of the wire to produce a conductor in tape form; and subsequent heat treatment by heating to a temperature of between 800null C. to 870null C. This last step helps to increase the connection between the MgB2 grains whilst retaining the structural defects produced in the rolling step, thus producing a superconducting wire with greater current-transport capacity.
摘要翻译：描述了一种制造基于MgB 2的超导线材的方法，包括以下步骤：制备包含由金属覆盖层包围的MgB 2核的圆柱形线，其中芯具有由化合物MgB 2的晶粒形成的晶格结构; 轧制钢丝以制造带状导体; 并通过加热到800℃至870℃的温度进行随后的热处理。最后一步有助于增加MgB2晶粒之间的连接，同时保留在轧制步骤中产生的结构缺陷，从而产生具有更大的超导线当前运输能力。

6. 发明授权

US06511943B1 Synthesis of magnesium diboride by magnesium vapor infiltration process (MVIP) 失效
标题翻译：通过镁蒸气渗透法（MVIP）合成二硼化镁
公开(公告)号：US06511943B1
公开(公告)日：2003-01-28
申请号：US10096774
申请日：2002-03-13
申请人： Adriana C. Serquis , Yuntian T. Zhu , Frederick M. Mueller , Dean E. Peterson , Xiao Zhou Liao
发明人： Adriana C. Serquis , Yuntian T. Zhu , Frederick M. Mueller , Dean E. Peterson , Xiao Zhou Liao
IPC分类号： H01L3924
CPC分类号： C04B35/6455 , C01B35/04 , C04B35/58057 , C04B2235/3206 , C04B2235/658 , C04B2235/6584 , C04B2235/72 , C04B2235/785 , C04B2235/786 , C04B2235/79 , C04B2235/80 , C04B2235/85 , H01L39/2487 , Y10S420/901 , Y10S505/736 , Y10S505/805
摘要： A process of preparing superconducting magnesium diboride powder by heating an admixture of solid magnesium and amorphous boron powder or pellet under an inert atmosphere in a Mg:B ratio of greater than about 0.6:1 at temperatures and for time sufficient to form said superconducting magnesium diboride. The process can further include exposure to residual oxygen at high synthesis temperatures followed by slow cooling. In the cooling process oxygen atoms dissolved into MgB2 segregated to form nanometer-sized coherent Mg(B,O) precipitates in the MgB2 matrix, which can act as flux pinning centers.
摘要翻译：一种制备超导二硼化镁粉末的方法，该方法是在惰性气氛下，在Mg：B比大于约0.6:1的温度下加热固体镁和无定形硼粉或颗粒的混合物，并足以形成所述超导二硼化镁。该方法还可以包括在高合成温度下暴露于残余氧，然后缓慢冷却。在冷却过程中，溶解在MgB2中的氧原子在MgB2基体中分离形成纳米尺度的一致的Mg（B，O）析出物，可以作为磁通钉扎中心。

7. 发明授权

US6099605A Superabrasive boride and a method of preparing the same by mechanical alloying and hot pressing 有权
公开(公告)号：US6099605A
公开(公告)日：2000-08-08
申请号：US327052
申请日：1999-06-07
申请人： Bruce A. Cook , Joel L. Harringa , Alan M. Russell
发明人： Bruce A. Cook , Joel L. Harringa , Alan M. Russell
IPC分类号： C04B35/58 , C09K3/14
CPC分类号： C04B35/5805 , C04B35/58057 , C04B35/645 , C09K3/1409
摘要： A ceramic material which is an orthorhombic boride of the general formula: AlMgB.sub.14 :X, with X being a doping agent. The ceramic is a superabrasive, and in most instances provides a hardness of 40 GPa or greater.

8. 发明授权

US08268234B2 Cermets from molten metal infiltration processing 有权
标题翻译：金属陶瓷从熔融金属渗透处理
公开(公告)号：US08268234B2
公开(公告)日：2012-09-18
申请号：US13016459
申请日：2011-01-28
申请人： Richard Lee Landingham
发明人： Richard Lee Landingham
IPC分类号： C23C32/00 , A61F2/28
CPC分类号： C04B35/515 , A61F2/28 , A61F2/30 , A61F2002/30968 , A61F2310/00185 , A61F2310/00191 , A61F2310/00203 , A61F2310/00251 , A61F2310/00263 , A61F2310/00299 , A61F2310/00311 , A61L27/427 , A61L31/128 , B22F3/114 , B22F2998/00 , C04B41/009 , C04B41/51 , C04B41/88 , C22C1/1036 , C22C2001/1021 , F41H5/0414 , C04B35/563 , C04B35/5805 , C04B35/58057 , C04B38/00 , C04B41/4523 , C22C29/02 , C22C29/14
摘要： New cermets with improved properties and applications are provided. These new cermets have lower density and/or higher hardness than B4C cermet. By incorporating other new ceramics into B4C powders or as a substitute for B4C, lower densities and/or higher hardness cermets result. The ceramic powders have much finer particle size than those previously used which significantly reduces grain size of the cermet microstructure and improves the cermet properties.
摘要翻译：提供了具有改进的性能和应用的新金属陶瓷。这些新型金属陶瓷具有比B4C金属陶瓷更低的密度和/或更高的硬度。通过将其他新型陶瓷掺入到B4C粉末中或作为B4C的替代品，会产生较低的密度和/或更高的硬度的金属陶瓷。陶瓷粉末具有比以前使用的更细的粒度，其显着降低金属陶瓷微结构的晶粒尺寸并改善金属陶瓷性质。

9. 发明申请

US20090005251A1 Superconducting element containing MgB2 审中-公开
标题翻译：含MgB2的超导元素
公开(公告)号：US20090005251A1
公开(公告)日：2009-01-01
申请号：US11882148
申请日：2007-07-31
申请人： Rene Fluekiger , Paola Lezza
发明人： Rene Fluekiger , Paola Lezza
IPC分类号： H01B12/10 , H01L39/24
CPC分类号： C04B35/58057 , B82Y30/00 , C04B35/58 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3234 , C04B2235/3239 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/326 , C04B2235/3293 , C04B2235/3418 , C04B2235/3804 , C04B2235/3808 , C04B2235/3813 , C04B2235/3817 , C04B2235/3821 , C04B2235/3826 , C04B2235/3839 , C04B2235/3843 , C04B2235/3847 , C04B2235/3852 , C04B2235/3856 , C04B2235/386 , C04B2235/3865 , C04B2235/3873 , C04B2235/3891 , C04B2235/40 , C04B2235/401 , C04B2235/404 , C04B2235/405 , C04B2235/407 , C04B2235/421 , C04B2235/427 , C04B2235/428 , C04B2235/442 , C04B2235/5288 , H01L39/141 , H01L39/2487
摘要： A superconductive element containing magnesiumdiboride (=MgB2), comprising at least one superconductive filament (1) of a size between 5 and 500 micron, which is enclosed in a metallic matrix (2) and also comprising at least one highly conductive ohmic element (4),the superconducting filaments being separated from the matrix (2) and from the conductive ohmic element (4) by a protective metallic layer (3), the superconductive filament being formed by a reaction between boron (B) and magnesium (Mg) powders and boron carbide (=B4C) powders as a first additive is characterized in that one or more additional powder additives containing carbon are present in the reaction of the powder mixtures including Mg, B and B4C. The reaction of the powder mixture to MgB2 is carried out at temperatures between 500 and 760° C. leading to a maximum of the critical current density, Jc, at temperatures at 760° C. and below.
摘要翻译：包含二氧化硅（= MgB 2）的超导元件，其包含至少一个尺寸在5和500微米之间的超导细丝（1），其被包封在金属基体（2）中并且还包括至少一个高导电欧姆元件（4 ），超导细丝通过保护金属层（3）与基体（2）和导电欧姆元件（4）分离，超导丝由硼（B）和镁（Mg）粉末之间的反应形成和作为第一添加剂的碳化硼（= B4C）粉末的特征在于，在包含Mg，B和B4C的粉末混合物的反应中存在一种或多种另外的含有碳的粉末添加剂。粉末混合物与MgB 2的反应在500和760℃之间的温度下进行，导致在760℃及以下的温度下临界电流密度Jc最大。

10. 发明申请

US20080318794A1 Superconductive wire and method for producing the same 审中-公开
标题翻译：超导线及其制造方法
公开(公告)号：US20080318794A1
公开(公告)日：2008-12-25
申请号：US12153483
申请日：2008-05-20
申请人： Masaya Takahashi , Kazuhide Tanaka , Michiya Okada
发明人： Masaya Takahashi , Kazuhide Tanaka , Michiya Okada
IPC分类号： H01B12/04 , H01L39/24
CPC分类号： H01L39/141 , C04B35/58057 , C04B2235/401 , C04B2235/421 , C04B2235/6581 , C04B2235/94 , H01L39/2487 , Y10T29/49014
摘要： A superconductive wire wherein the superconductive wire has a core portion containing magnesium diboride as the main component and a continuous metallic sheath firmly adhered to the core portion; the core portion is kept substantially vacuum; and the content of an inert gas such as an Ar gas contained in the core portion is in the range of 0.00002 to 10 ppm. Further, disclosed is a method for producing a superconductive wire, wherein the method comprises the steps of mixing powder of a source material constituting magnesium diboride to form a core portion of the superconductive wire in an inert gas, filling a pipe with the mixed material powder in vacuum environment, sealing the pipe with vacuum after filled with the material powder, forming magnesium diboride powder by heating the vacuum-sealed pipe (sheath), and forming the core portion by wiredrawing the pipe in the state where the magnesium diboride powder is sealed with vacuum, and the core portion firmly sticks to the wiredrawn metallic pipe. The core portion is kept vacuum, and the content of an inert gas contained in the core portion is in the range of 0.00002 to 10 ppm.
摘要翻译：一种超导线，其中超导线具有含有二硼化镁作为主要成分的核心部分，并且连续的金属护套牢固地粘附在芯部分上; 芯部保持基本上真空; 并且包含在芯部中的诸如Ar气体的惰性气体的含量在0.00002至10ppm的范围内。此外，公开了一种超导线的制造方法，其特征在于，包括以下步骤：混合构成二硼化硼的源材料的粉末，在惰性气体中形成超导线的芯部，用混合材料粉末填充管在真空环境中，填充材料粉末后真空密封管道，通过加热真空密封管（护套）形成二硼化镁粉末，并在二硼化镁粉末密封的状态下通过拉丝管形成芯部并且芯部牢固地粘附在拉丝金属管上。核心部分保持真空，并且包含在芯部中的惰性气体的含量在0.00002至10ppm的范围内。

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